Mechanically induced gas or liquid streams in seas, lakes or water-courses for forming weirs or breakwaters; making or keeping water surfaces free from ice, aerating or circulating water, e.g. screens of air-bubbles against sludge formation or salt water entry, pump-assisted water circulation (moving sediments E02B 3/023; for ice breakers B63B 35/08; aerating or circulating water in fish-tanks A01K 63/042; purification of waste water with addition of air C02F; distributing gases in liquids in general B01F 3/04)

Barrages controlled by the variations of the water level; automatically functioning barrages (level regulators G05D 9/00; the documents are filed in this subdivision and the relevant subdivision E02B 7/26 to E02B 7/50)

}

[2013‑01]

E02B 7/22

. .

Stop log dams; Emergency gates [2013‑01]

E02B 7/24

. .

Needle weirs [2013‑01]

E02B 7/26

. .

Vertical-lift gates [2013‑01]

E02B 7/28

. . .

with sliding gates [2013‑01]

E02B 7/30

. . .

with guide wheels or rollers for the gates [2013‑01]

E02B 7/32

. . .

Cylindrical or tubular gates [2013‑01]

E02B 7/34

. . .

Flash- boards for vertical-lift gates [2013‑01]

E02B 7/36

. . .

Elevating mechanisms for vertical-lift gates [2013‑01]

E02B 7/38

. .

Rolling gates

{

or gates moving horizontally in their own plane, e.g. by sliding

}

[2013‑01]

E02B 7/40

. .

Swinging or turning gates [2013‑01]

E02B 7/42

. . .

Gates of segmental or sector-like shape with horizontal axis [2013‑01]

Cleaning or keeping clear the surface of open water; Apparatus therefor (construction of ships or other waterborne vessels B63B, e.g. vessels specially adapted for collecting pollution from open water B63B 35/32; in swimming or splash baths or pools E04H 4/16) [2013‑01]

E02B 2015/005

.

{

Tent-like structures for dealing with pollutant emissions below the water surface

Devices for distributing materials, e.g. absorbed or magnetic particles over a surface of open water to remove the oil, with or without means for picking up the treated oil (E02B 15/042 takes precedence)

}

[2013‑01]

E02B 15/042

. .

{

Devices for removing the oil by combustion with or without means for picking up the oil

}

[2013‑01]

E02B 15/043

. .

{

Devices or methods for removing oil by means of freezing

}

[2013‑01]

E02B 15/045

. .

{

Separating means for recovering oil floating on a surface of open water (E02B 15/048 takes precedence; separation in general B01D)

}

[2013‑01]

E02B 15/046

. .

{

Collection of oil using vessels, i.e. boats, barges

}

[2013‑01]

E02B 15/047

. . .

{

provided with an oil collecting boom arranged on at least one side of the hull